User Manual
EN
DC voltage measurement
•
Set the function selection switch to DC V.
•
Connect the wires to the device.
•
Connect the wires to the measured circuit.
•
The display shows the measured voltage.
AC voltage measurement
•
Set the function selection switch to AC V.
•
Connect the wires to the device.
•
Connect the wires to the measured circuit.
•
The display shows the measured voltage.
Resistance, diode, continuity and capacity
measurement
•
Set the function selection switch to "Ω/diode/
continuity/capacity".
•
Connect the wires to the device.
•
To select the desired measurement function
(ohm/diode/continuity/break) press the
mode selection switch and the display shows
"diode/continuity/nF". Activate the mode with
another press of the button.
•
Make sure that the measured circuit is not
under power.
•
Touch the wires to the end points of the
resistor/diode/capacitor or the circuit.
•
The measured value is displayed on the screen.
•
In continuity mode if the measured resistance
is lower than 100Ω the device beeps.
•
When measuring diode opening voltage -
opening direction in case of a normal silicone
diode - the device shows 0.4-0.7 V. In the
closing direction (and in case of a broken
diode) the device shows "OL". In case of a
short-circuited diode the device shows 0mV
voltage.
•
If you are measuring capacity in a circuit, turn
off all power sources and discharge every
electrolyte capacitor several times.
WARNING!
Before measuring a resistor that is part of a circuit, turn
the power off and discharge all electrolyte capacitors!
Frequency measurement
•
Connect the black wire to the "COM" and the
red one to the "V/Ω/Hz" connector.
•
Set the function selection switch to
"Hz/%Duty".
•
Connect the wires to the signal source. The
range is automatically selected by the device
to give you the best possible resolution.
•
By pressing the "Hz/%" button the duty cycle
of the measured signal is displayed on the
screen.
Note: The voltage of the inward signal can be between
800mV and 10V AC RMS. Above 10V the measurement
may be inaccurate.
Duty cycle measurement
•
Connect the black wire to the "COM" and the
red one to the "V/Ω/Hz" connector.
•
Set the function selection switch to
"Hz/%Duty".
•
Press the "Hz/%" button to switch to duty cycle
measurement mode.
•
Connect the wires to the signal source. The
range is automatically selected by the device
to give you the best possible resolution.
Note: The voltage of the inward signal can be between
900mV and 10V AC RMS. Above 10V the measurement
may be inaccurate.
B
attery
replaceMent
If the "BAT" sign appears on the screen, the
battery in the device needs to be replaced.
•
Turn the device off and remove the measuring
wires.
•
Remove the screw holding the battery
container lid, and remove the lid.
•
Remove the depleted battery and replace it to
a new one of the same type (9V, IEC6F22)
•
Replace the lid and screw it back in.
Warning: Always make sure that the wires are
disconnected from any measured circuits before opening
the container lid. Close and screw back the lid before
using the device again.